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Background  Hemodynamic monitoring is frequently needed in ventilated patients with unstable hemodynamics after open-heart surgery. Novel miniaturized single-use transesophageal echocardiographic probe has been scarcely used in this clinical setting.    Case presentation  A patient who underwent a scheduled open-heart surgery developed a ventilator-associated pneumonia and was referred to the intensive care unit for post-operative acute respiratory distress syndrome. Hemodynamic monitoring was performed with a single-use indwelling transesophageal echocardiography probe during 50 h. Initially, a contrast study depicted a patent foramen ovale with a right-to-left shunt. Nitric oxide was administered and positive end-expiration pressure was reduced. Subsequently, the patient became hemodynamically unstable and the identification of a localized tamponade due to compressive left atrial hematoma prompted reoperation.    Conclusions  The novel hemodynamic monitoring device described here appears valuable to help identifying severe post-operative complications and guide acute care.

Hemodynamic monitoring using a single-use indwelling transesophageal echocardiography probe in an unstable patient after open-heart surgery